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gpio: mc9s08dz60: use gpiochip data pointer

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This makes the driver use the data pointer added to the gpio_chip
to store a pointer to the state container instead of relying on
container_of().

Cc: wu guoxing <b39297@freescale.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-07 10:07:07 +01:00
parent 609f9692cc
commit cf90c9e35b
1 changed files with 4 additions and 10 deletions
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14
drivers/gpio/gpio-mc9s08dz60.c
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@ -29,12 +29,6 @@ struct mc9s08dz60 {
struct gpio_chip chip;
};
static inline struct mc9s08dz60 *to_mc9s08dz60(struct gpio_chip *gc)
{
return container_of(gc, struct mc9s08dz60, chip);
}
static void mc9s_gpio_to_reg_and_bit(int offset, u8 *reg, u8 *bit)
{
*reg = 0x20 + offset / GPIO_NUM_PER_GROUP;
@ -45,7 +39,7 @@ static int mc9s08dz60_get_value(struct gpio_chip *gc, unsigned offset)
{
u8 reg, bit;
s32 value;
struct mc9s08dz60 *mc9s = to_mc9s08dz60(gc);
struct mc9s08dz60 *mc9s = gpiochip_get_data(gc);
mc9s_gpio_to_reg_and_bit(offset, &reg, &bit);
value = i2c_smbus_read_byte_data(mc9s->client, reg);
@ -75,7 +69,7 @@ static int mc9s08dz60_set(struct mc9s08dz60 *mc9s, unsigned offset, int val)
static void mc9s08dz60_set_value(struct gpio_chip *gc, unsigned offset, int val)
{
struct mc9s08dz60 *mc9s = to_mc9s08dz60(gc);
struct mc9s08dz60 *mc9s = gpiochip_get_data(gc);
mc9s08dz60_set(mc9s, offset, val);
}
@ -83,7 +77,7 @@ static void mc9s08dz60_set_value(struct gpio_chip *gc, unsigned offset, int val)
static int mc9s08dz60_direction_output(struct gpio_chip *gc,
unsigned offset, int val)
{
struct mc9s08dz60 *mc9s = to_mc9s08dz60(gc);
struct mc9s08dz60 *mc9s = gpiochip_get_data(gc);
return mc9s08dz60_set(mc9s, offset, val);
}
@ -109,7 +103,7 @@ static int mc9s08dz60_probe(struct i2c_client *client,
mc9s->client = client;
i2c_set_clientdata(client, mc9s);
return gpiochip_add(&mc9s->chip);
return gpiochip_add_data(&mc9s->chip, mc9s);
}
static int mc9s08dz60_remove(struct i2c_client *client)